Z-axis device

Abstract

The utility model discloses a Z axis device, including rotating motor body and being located on the main shaft of rotating motor body, and the main shaft is hollow, and the main shaft is equipped with the screw rod and screw rod nut, and the screw rod nut is connected the main shaft, and the screw rod is installed on the screw rod nut, and the rotating motor body is equipped with the motor fixed plate, and the motor fixed plate is equipped with the corresponding matched guide limit hole of screw rod. The utility model can effectively improve the equipment space utilization, the stability of motor operation, and reduce the equipment maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a Z-axis device. Background Technology

[0002] Most existing Z-axis lifting mechanisms on the market use linear motors, which have a large structure. When multiple Z-axis mechanisms are mounted, they occupy a lot of space, which means that the robotic arm needs to move a greater distance to pick up and place materials. This also results in a larger overall size of the robotic arm, which is not conducive to the design and application of the robotic arm and increases the difficulty of repair. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a Z-axis device to simplify the structure and reduce the volume.

[0004] To solve the above-mentioned technical problems, this utility model provides a Z-axis device, including a rotary motor body and a main shaft disposed on the rotary motor body. The main shaft is hollow, and a lead screw and a lead screw nut are disposed inside the main shaft. The lead screw and nut are connected to the main shaft, and the lead screw is mounted on the lead screw nut. A motor fixing plate is provided on the rotary motor body, and a guide limiting hole corresponding to and matching the lead screw is provided on the motor fixing plate.

[0005] Furthermore, the lead screw is provided with a guide limiting surface.

[0006] Furthermore, the rotary motor body is equipped with an encoder, and the main shaft is equipped with a code disk corresponding to the encoder.

[0007] Furthermore, both the encoder and the code disk have through holes in the middle, which allow the lifting lead screw to avoid being obstructed.

[0008] Furthermore, the rotary motor body is provided with multiple bearings, and the main shaft is mounted on the rotary motor body through the bearings.

[0009] The beneficial effects of this utility model are: it can effectively improve the space utilization rate of equipment, the stability of motor operation, and reduce the difficulty of equipment maintenance. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the Z-axis device according to an embodiment of the present invention, including the rotary motor body.

[0011] Figure 2 This is a three-dimensional structural diagram of the lead screw according to an embodiment of the present utility model.

[0012] Figure 3 This is a side view of the Z-axis device of this utility model embodiment, including the rotary motor body.

[0013] Figure 4 yes Figure 3 Sectional view at point CC.

[0014] Explanation of icon numbers

[0015] 1. Rotary motor body, 2. Main shaft, 3. Lead screw, 4. Lead screw nut, 5. Motor mounting plate, 6. Guide limit surface, 7. Encoder, 8. Code disk, 9. Bearing. Detailed Implementation

[0016] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicators will also change accordingly.

[0018] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0019] Please refer to Figures 1-4 The Z-axis device of this utility model embodiment includes a rotary motor body and a main shaft disposed on the rotary motor body. The rotary motor body drives the main shaft to rotate.

[0020] The main shaft is hollow, containing a lead screw and a lead screw nut. The lead screw nut connects to the main shaft. The lead screw is mounted on the lead screw nut; the lead screw nut has internal threads, and the lead screw has external threads. A motor mounting plate is mounted on the rotary motor body. The motor mounting plate has guide and limiting holes that correspond to and match the lead screw, through which the lead screw passes. The main shaft drives the lead screw nut to rotate. Through the action of the threads and the limiting action of the motor mounting plate, the rotational motion of the lead screw nut is converted into the lifting motion of the lead screw. The guide and limiting holes prevent the lead screw from rotating and simultaneously guide its lifting motion.

[0021] This invention integrates the lead screw and lead screw nut into the motor, and also integrates the guide into the motor, making the whole structure simple and greatly reducing the size.

[0022] In one implementation, the lead screw is provided with a guide limiting surface, that is, the upper end of the lead screw adopts a flat design. Preferably, two guide limiting surfaces are symmetrically arranged.

[0023] In one implementation, the rotary motor body is equipped with an encoder, and the main shaft is equipped with a code disk corresponding to the encoder. This invention uses the encoder and code disk to identify the rotational position and accuracy of the main shaft. Preferably, both the encoder and the code disk have through holes in the middle, and these through holes provide clearance for the lifting lead screw.

[0024] In one implementation, the rotary motor body is provided with multiple bearings (usually two), and the main shaft is mounted on the rotary motor body through the bearings.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Z-axis device, comprising a rotary motor body and a main shaft disposed on the rotary motor body, characterized in that, The main shaft is hollow, and a lead screw and a lead screw nut are installed inside the main shaft. The lead screw and nut are connected to the main shaft, and the lead screw is mounted on the lead screw nut. The rotary motor body is equipped with a motor fixing plate, and the motor fixing plate is equipped with guide limit holes that correspond to and match the lead screw.

2. The Z-axis device as described in claim 1, characterized in that, The lead screw is equipped with a guide limiting surface.

3. The Z-axis device as described in claim 1, characterized in that, The rotary motor body is equipped with an encoder, and the main shaft is equipped with a code disk corresponding to the encoder.

4. The Z-axis device as described in claim 3, characterized in that, Both the encoder and the code disk have through holes in the middle, and the through holes in the encoder and the code disk are for the lifting lead screw to avoid being obstructed.

5. The Z-axis device as described in claim 1, characterized in that, The rotating motor body contains multiple bearings, and the main shaft is mounted on the rotating motor body through the bearings.

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